Who sold more albums Super-tramp or ELO?

ELO (Electric Light Orchestra) has sold more albums than Supertramp. According to the Recording Industry Association of America (RIAA), ELO has sold over 50 million albums in the United States, while Supertramp has sold over 20 million albums. ELO has also sold over 100 million albums worldwide, making them one of the best-selling music acts of all time.